Logan, The Tristar does sound like a great simple solution for some situations. However, in our case that would mean getting rid of ~5000watts of DC power out in the battery shed. Our hopes were to put it to a beneficial AC use inside the home.
How are things coming along with your 6kW turbine by the way? We eagerly await. . . Mark Dickson Oasis Montana Inc. -----Original Message----- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jennifer Bryce Sent: Monday, April 20, 2009 7:03 AM To: RE-wrenches Subject: Re: [RE-wrenches] Fronius IG4000 problem boB That is a good point! That is why we use MS Tristar PWM controllers to PWM the load instead of a Bang on/off load control from a relays. It seems to work much better because of the rapidly changing input from the wind turbine. The Tristar seems fast enough to respond well in a coupling application for load management. The Xantrex C-60 do not works as well. Of course that is all for nothing if the grid is weak. Logan On Apr 19, 2009, at 11:41 -Apr 19, boB Gudgel wrote: > Mark Dickson wrote: > > >> the array output climbs above 3000 or so watts, we continually > get a “State 108” code and shut down cycles each time a relay trips > on a diversion load... > > Sounds to me like your diversion load may be too small and/or the > grid is weak at the Fronius end. When the diversion loads suddenly > go away due to > their "relays tripping", the Fronius', having lots of power to sell, > raising the AC grid voltage right out of the UL1741 / IEEE Voltage > window limit (132V ?). > It hen has to shut down and disconnect in order to stop the apparent > islanding condition. That's probably what state 108 is trying to > tell you ? > > Looks like your Fronius inverter is most likely working just fine ? > boB > > > > >> Larry, >> >> I am having a somewhat similar problem with a recently installed >> IG5100. I have it installed in conjunction with an Outback battery >> based system for AC coupling. We have it set up to divert its loads >> to an electric ice melter and then to a large electric heater as >> the battery voltages climb. A third relay cuts the array power >> between the Fronius and the AC panel if the battery voltage >> continues to climb to unsafe levels. >> >> When we have heavy sunshine and low house loads (second home) and >> the array output climbs above 3000 or so watts, we continually get >> a “State 108” code and shut down cycles each time a relay trips on >> a diversion load. I have worked with both Outback and Fronius (who >> have been great!) but at this point we are all baffled. I think my >> next step, especially after reading the above post is to replace >> the Fronius. Then as a last resort swap the IG5100 out to a couple >> of SMA 3000US’s (a 6000US does not configure well with the 28 >> evergreens). >> >> Any input from you guys would be greatly appreciated! >> >> Mark Dickson >> >> Oasis Montana Inc. >> >> ------------------------------------------------------------------------ >> >> *From:* re-wrenches-boun...@lists.re-wrenches.org >> [mailto:re-wrenches-boun...@lists.re-wrenches.org >> ] *On Behalf Of *William Miller >> *Sent:* Sunday, April 19, 2009 7:59 PM >> *To:* RE-wrenches >> *Subject:* Re: [RE-wrenches] Fronius IG4000 problem >> >> Larry: >> >> We've installed about 20 IG/LV series inverters. Some failures >> required only replacement of GF cards, most required replacement >> inverters. We've had several DOA when new, one was replaced by >> Fronius with a rebuild even when we warned in writing that we would >> not accept a rebuild (it had multiple KOs pulled in the chassis -- >> just not acceptable). As of right now, we have 7 in non-operational >> status awaiting replacement. No kidding. >> >> There maybe be one or two that have not failed, but this is offset >> by those that have failed multiple times. The biggest failure rate >> is of the 6 LV4550s on an exterior north wall 2 blocks from the >> beach (http://millersolar.com/Portfolio/Commercial/Voler/ >> voler.html). These have been replaced three or four times each and >> are coming out as soon as we finalize the paperwork, with 3 10K >> Plus series inverters going in. This will require extensive rework, >> but we are being paid for our time. The Fronius staff has been very >> nice, but pretty slow to respond. >> >> I hate to report bad reviews to this forum, but it is what it is. >> >> William Miller >> >> >> >> >> At 02:51 PM 4/19/2009, you wrote: >> >> William, >> >> 100% of what quantity? Are there any special conditions that may >> have contributed? Were they minor problems? >> >> Larry >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> List sponsored by Home Power magazine >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Options & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out participant bios: >> www.members.re-wrenches.org >> >> > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > Pine Ridge Products LLC 1646 East Highwood RD Belt, MT 59412 406-738-4283 www.pineridgeproducts.com www.chinookturbines.com _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
